Receptacle structure of the optical connector and optical communication device using the same

ABSTRACT

The present invention provides a receptacle structure for an optical connector comprising a receptacle body, and a first housing. The receptacle body has a first end and a second end for providing optical connector inserted thereto, respectively. Two sides of the first end respectively have first flexible plate having first attaching structure. The first housing, folded by a single piece material, is a closed structure having a first through hole wherein two walls of the first housing have first coupling structure for coupling to the attaching structure when the first end of the receptacle body is inserted into the first through hole whereby the first housing is completely assembled with the receptacle body. In addition, an optical communication device having the receptacle structure is also provided in which the optical connector can be inserted into the receptacle structure for optical communication.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Taiwan Patent Application No.108138508, filed on Oct. 25, 2019, in the Taiwan Intellectual PropertyOffice of the R.O.C, the disclosure of which is incorporated herein inits entirety by reference.

FIELD OF INVENTION

The present invention relates to a receptacle connector. In particular,it relates to a receptacle structure for an optical connector and anoptical communication device using the receptacle structure.

BACKGROUND OF THE INVENTION

Due to the advantages of high frequency bandwidth and low loss, opticalfibers have been widely used as signal transmission media in recentyears. The use of optical fiber has already had a major revolutionaryimpact in the communications industry. Nowadays, 100G optical modulecommunication is not enough, and the future will be expected to movetowards the era of 400G optical module communications.

In the field of 400G optical communications, there are also many designsfor the packaging design of optical fiber modules, one of which iscalled Quad Small Form Factor Pluggable-Double Density (QSFF-DD). Thespecification, with a downward compatible design, has attracted theattention of many large manufacturers, and has launched correspondingspecifications of optical communication module products.

For above specifications of the optical communication module, it needsto be installed on the housing of the communication device. Take thehousing of the IEC specification as an example, as shown in FIG. 1A(a)˜(d), such as IEC604-10A m=4 housing, as shown in (d) in FIG. 1A, thesize of hole is 9.5 mm in the height direction. Since these holes arealready standard products in this field of industry, they cannot bechanged. In addition, the receptacle specifications for transceiversthat conform to the QSFF-DD specifications also have certainspecifications. For example, in the cross-sectional view of the QSFF-DDspecifications receptacle shown in FIG. 1B, the dimension G in theheight direction is 9.1 mm. Therefore, how the new specification ofreceptacle used for transceiver can be installed in the establishedspecification of mounting holes in the lowest cost way, which is aproblem to be solved.

The above information disclosed in this section is only for enhancementof understanding of the background of the described technology andtherefore it may contain information that does not form the prior artthat is already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

The present invention provides a receptacle structure for an opticalconnector, and the receptacle body has a flexible plate structure. Atthe periphery of the flexible plate, a single metal plate is folded intoa closed structure and connected to the receptacle body. The joints ofthe two ends of the metal plate can be spliced or overlapped afterfolding. The present invention utilizes the elasticity of the two sideplates of the receptacle structure to assemble with the metal housing.After assembling, when the connector is inserted into the receptacle,the side plates of the connector can be expand outwardly due to theflexibility of the side plates, so that the metal housing is more firmlybonded to the receptacle body, and cannot fall out in the direction ofconnector insertion.

The present invention provides an optical communication device, whichhas an optical connector receptacle, and the optical communicationdevice is installed into a mounting hole by a closed metal housing, sothat the mounting hole of the optical communication device can maintainthe original specification and a new specification of the opticalconnector can also be disposed in the mounting hole. In addition,because the connector receptacle and the side plate of the metal housingare flexible, when the optical connector is inserted into thereceptacle, the outer wall of the optical connector can push against theside wall of the receptacle, which also drives the metal plates expandoutwardly, making the metal housing never fall out of the opening of thehousing, thereby ensuring the coupling effect of the optical connector.

In one embodiment of the present invention, the present inventionprovides a receptacle body, having at least one connecting structure,the receptacle body having a first end and a second end, which arerespectively inserted by the optical connector for coupling to theconnecting structure, two sides of the first end respectively having afirst flexible plate, every the first flexible plate having at least onefirst attaching structure; and a first housing, being a closed structurehaving a first through hole and folded by a single material, two sidewalls of the first housing respectively having at least one firstcoupling structure, wherein the first end of the receptacle body isinserted into the first through hole and the two side walls of the firsthousing respectively correspond to the first flexible plate of thereceptacle body, the at least one first attaching structure is assembledwith the at least one first coupling structure, and the first housing iscoupled to the receptacle body.

In another embodiment of the present invention, the present inventionprovides an optical communication device, comprising: an applicationdevice, having a housing plate comprising a mounting hole; a receptaclestructure, a part of the receptacle structure passing through themounting hole, the receptacle structure comprising: a receptacle body,having at least one connecting structure, the receptacle body having afirst end and a second end, two sides of the first end respectivelyhaving a first flexible plate, every the first flexible plate having atleast one first attaching structure, two sides of the second endrespectively having a second flexible plate, every the second flexibleplate having at least one second attaching structure; a first housing,being a closed structure having a first through hole and folded by asingle material, two side walls of the first housing respectively havingat least one first coupling structure, wherein the first end of thereceptacle body is inserted into the first through hole and the two sidewalls of the first housing respectively correspond to the first flexibleplate of the receptacle body, the at least one first attaching structureis assembled with the at least one first coupling structure, and thefirst housing is coupled to the receptacle body; and a second housing,being the closed structure having a second through hole and folded byanother single material, two side walls of the second housingrespectively having at least one second coupling structure, wherein thesecond end of the receptacle body is inserted into the second throughhole and the two side walls of the second housing respectivelycorrespond to the second flexible plate, the at least one secondattaching structure is assembled with the at least one second couplingstructure, and the second housing is coupled to the receptacle body,wherein a part which the first housing and the receptacle body areassembled passes through the mounting hole, the first end of thereceptacle body is disposed at a first side of the housing plate, andthe second end of the receptacle body is disposed at a second side ofthe housing plate.

Many of the attendant features and advantages of the present inventionwill become better understood with reference to the following detaileddescription considered in connection with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed structure, operating principle and effects of the presentinvention will now be described in more details hereinafter withreference to the accompanying drawings that show various embodiments ofthe present invention as follows.

FIG. 1A is a schematic diagram of conventional metal housing platespecifications.

FIG. 1B is a schematic cross-sectional diagram of a conventional QSFF-DDreceptacle.

FIG. 2A is an exploded schematic diagram of an embodiment of areceptacle structure of an optical connector in the present invention.

FIG. 2B is an assembly schematic diagram of an embodiment of thereceptacle structure of the optical connector in the present invention.

FIG. 2C is a schematic diagram from another perspective of an embodimentof a second housing in the present invention.

FIGS. 3A and 3B are schematic cross-sectional diagrams of an embodimentof a receptacle body in the present invention.

FIG. 4 is a schematic diagram of another embodiment of the first orsecond housing edge connected in the present invention.

FIG. 5 is an application schematic diagram of an embodiment of anoptical communication device in the present invention.

FIG. 6 is a schematic diagram of a first flexible plate being expandedby inserting the optical connector into the receptacle body in thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the exemplary embodiments of thepresent invention, examples of which are illustrated in the accompanyingdrawings. Therefore, it is to be understood that the foregoing isillustrative of exemplary embodiments and is not to be construed aslimited to the specific embodiments disclosed, and that modifications tothe disclosed exemplary embodiments, as well as other exemplaryembodiments, are intended to be included within the scope of theappended claims. These embodiments are provided so that this inventionwill be thorough and complete, and will fully convey the inventiveconcept to those skilled in the art. The relative proportions and ratiosof elements in the drawings may be exaggerated or diminished in size forthe sake of clarity and convenience in the drawings, and such arbitraryproportions are only illustrative and not limiting in any way.

For convenience, certain terms employed in the specification, examplesand appended claims are collected here. Unless defined otherwise, alltechnical and scientific terms used herein have the same meaning ascommonly understood by one of the ordinary skill in the art to whichthis invention belongs.

Various embodiments will now be described more fully with reference tothe accompanying drawings, in which illustrative embodiments are shown.The inventive concept, however, may be embodied in various differentforms, and should not be construed as being limited only to theillustrated embodiments. Rather, these embodiments are provided asexamples, to convey the inventive concept to one skilled in the art.Accordingly, known processes, elements, and techniques are not describedwith respect to some of the embodiments.

The singular forms “a”, “and”, and “the” are used herein to includeplural referents unless the context clearly dictates otherwise.

The following descriptions are provided to elucidate a receptaclestructure of an optical connector and an optical communication deviceusing the same and to aid it of skilled in the art in practicing thisinvention. These embodiments are merely exemplary embodiments and in noway to be considered to limit the scope of the invention in any manner.

Please refer to FIGS. 2A and 2B, FIG. 2A is an exploded schematicdiagram of an embodiment of a receptacle structure of an opticalconnector in the present invention, and FIG. 2B is an assembly schematicdiagram of an embodiment of the receptacle structure of the opticalconnector in the present invention. In this embodiment, the receptaclestructure 2 of the optical connector includes a receptacle body 20, afirst housing 21 and a second housing 23. The receptacle body 20 has afirst end 20A and a second end 20B, which are respectively inserted bythe optical connector. The first end 20A has first flexible plates 200Aand 201A on two sides. The each first flexible plate 200A or 201A isflexible and can be deformed in accordance with an external force, andis able to return to its original position after the external forcedisappears. The material used for the first flexible plate is notlimited, and it can be made of metal materials or polymer materials.

The each first flexible plate 200A or 201A has at least one firstattaching structure. In an embodiment, the first flexible plates 200Aand 201A further include a first sub-attaching structure 202A and asecond sub-attaching structure 203A. In this embodiment, the firstsub-attaching structure 202A or the second sub-attaching structure 203Ais a convex structure that protrudes outwardly from a surface of thefirst flexible plate 200A or 201A. The first sub-attaching structure202A is disposed in the middle region of the first flexible plate 200Aor 201A, and two second sub-attaching structures 203A are disposed on anouter edge of the first flexible plate 200A or 201A. It should be notedthat the number, location, and appearance of the first sub-attachingstructure 202A and the second sub-attaching structure 203A are notlimited, and anything that can achieve the coupling effect can beimplemented, so that the number, appearance, and location shown in thisembodiment are not limited. Similarly, there are second flexible plates200B and 201B on two sides of the second end 20B, and a second attachingstructure is set on the second flexible plates 200B and 201B. In anembodiment, the second flexible plates 200B and 201B include a thirdsub-attaching structure 202B and the fourth sub-attaching structure203B. The feature of the second flexible plates 200B and 201B, the thirdsub-attaching structure 202B and the fourth sub-attaching structure 203Bare respectively the same as that of the first flexible plates 200A and201A, the first sub-attaching structures 202A and the secondsub-attaching structures 203A described above, and unnecessary detailsare not repeated herein.

Please refer to FIGS. 3A and 3B, FIGS. 3A and 3B are schematiccross-sectional diagrams of an embodiment of the receptacle body in thepresent invention. In this embodiment, the first end 20A and the secondend 20B of the receptacle body 20 can be inserted by three opticalconnectors, so that there are three sets of connecting structures insidethe receptacle body 20, which has three sets of first coupling portion204 on the side of the first end 20A. Three sets of first couplingportion 204 are integrally formed with the receptacle body 20. The firstend 20A of the receptacle body 20 forms a space for inserting threeconnectors by two sets of first partition columns 205 a and 205 barranged up and down, and each first coupling portion 204 is disposed inthe space defined by the first partition columns 205 a and 205 b. Thesecond end 20B also has two sets of second partition columns 205 c and205 d arranged up and down to form a space into which three opticalconnectors are inserted. The connecting structure has three sets ofsecond coupling portions 206 on the second end 20B side, which areintegrally formed and coupled to the first coupling portion 204. In thisembodiment, the first coupling portion 204 has a first clip structure204 a, and the second coupling portion 206 has a second clip structure206 a coupled to the first clip structure 204 a, and a groove 206 bcorresponding to the second partition columns 205 c and 205 d.

In this embodiment, the second coupling portion 206 is inserted into thereceptacle body 20 from the second end 20B, wherein the groove 206 bcorresponds to the second partition columns 205 c and 205 d, so that thesecond coupling portion 206 can be movably set into the receptacle body20. After entering into the receptacle body 20, the first clip structure204 a of the first coupling portion 204 is a through hole and there is abump 204 b on a side of the first clip structure 204 a, the second clipstructure 206 a of the second coupling portion 206 is a hook structure,and the second clip structure 206 a passes through the through hole 204a, so that the second clip structure 206 a can be engaged with the bump204 b, whereby the first coupling portion 204 and second couplingportion 206 have a coupling effect. It should be noted that the aspectof the first clip structure 204 a and second clip structure 206 a is notlimited thereto. For example, the first clip structure 204 a and thesecond clip structure 206 a may be interchangeable, or they can becoupled each other in various ways, which is known to those skilled inthe art and unnecessary details are not repeated herein.

In addition, in this embodiment, the first coupling portion 204 has apair of hollow first connecting column 204 c. Similarly, each secondcoupling portion 206 also has a pair of hollow second connecting column206 c. When the first coupling portion 204 is coupled to the secondcoupling portion 206, the first connecting column 204 c and secondconnecting column 206 c respectively corresponded to the first couplingportion 204 and second coupling portion 206 would also be correspondedto each other, forming a through state. It should be noted that thenumber of connecting structure depends on the number of inserted opticalconnector, and is not limited to three in this embodiment. In addition,the first coupling portion 204 and the second coupling portion 206 arenot limited in the manner described in this embodiment. For example, thefirst coupling portion 204 and the second coupling portion 206 may beintegrally formed as an one-piece structure, which can be set into thereceptacle body. The first coupling portion, the second coupling portionand the receptacle body can also be integrally formed.

Please refer to FIGS. 2A and 2B, the first housing 21 is formed byfolding a single piece material, and the first housing 21 having a firstthrough hole 210 is a closed structure. Two side walls of the firsthousing 21 are respectively has at least one first coupling structure.The first through hole 210 is inserted by the first end 20A of thereceptacle body 20, the two side walls of the first housing 21respectively correspond to the first flexible plates 200A and 201A ontwo sides of the receptacle body 20, and at least one first attachingstructure is coupled to at least one first coupling structure, so thatthe first housing 21 is assembled with the receptacle body 20. In thisembodiment, the first coupling structure further includes a firstsub-coupling structure 211 and a second sub-coupling structure 212,wherein the first sub-coupling structure 211 corresponds to an openingof the first sub-attaching structure 202A, and the second sub-couplingstructure 212 corresponds to a recess of the second sub-attachingstructure 203A.

Since the first housing 21 is formed by folding a single piece material,in one embodiment, two ends of the material have a first overlappingportion 213 and a second overlapping portion 214 before the firsthousing 21 is folded. The first overlapping portion 213 and the secondoverlapping portion 214 are overlapped each other after the firsthousing 21 forms a closed structure by folding. In this embodiment, inorder to avoid increasing the thickness of outward convexity of thefirst housing 21 during overlapping, the first flexible plate 200Acorresponded to an overlapping area has an opening 207, and the firstoverlapping portion 213 is a structure that is folded toward the opening207. Therefore, when the first overlapping portion 213 and the secondoverlapping portion 214 are folded and overlapped, a part of the firstoverlapping portion 213 that is folded can be accommodated in theopening 207, and the second overlapping portion 214 may be stackedagainst a folded area of the first folded portion 213. Besidesoverlapping method, in another embodiment, as shown in FIG. 4, the firsthousing 21 has a first splicing portion 215 and a second splicingportion 216, which are respectively disposed at two ends of the firsthousing 21. After the first splicing portion 215 and the second splicingportion 216 form a closed structure by folding on the first housing 21,they are spliced together.

In addition, on two side walls of the first housing 21, an elasticinclined plate 217 is further extended to its outside, and an angle isgenerated between the elastic inclined plate 217 and the side wall ofthe first housing 21. The two side walls of the first housing 21respectively have baffles 218, which are extended from the side wall ofthe first housing 21 and have an included angle with the side wall ofthe first housing 21. In one embodiment, the included angle is 90degrees, but not limited thereto. As shown in FIGS. 2B and 2C, a secondhousing 23 is also able to be assembled with the second end 20B of thereceptacle body 20, and is a closed structure formed by folding of asingle piece material and has a second through hole 230. The two sidewalls of the second housing 22 have at least one second couplingstructure, which includes a third sub-coupling structure 231 and afourth sub-coupling structure 232. The two side walls of the secondhousing 22 have at least one second coupling structure, which includes athird sub-coupling structure 231 and a fourth sub-coupling structure232. The second through hole 230 can be inserted by the second end 20Bof the receptacle body 20 so that the two side walls of the secondhousing 23 respectively correspond to the second flexible plates 200Band 201B on two sides of the second end 20B of the receptacle body 20,the third sub-attaching structure 202B and the fourth sub-attachingstructure 203B can be respectively coupled to the third sub-couplingstructure 231 and the fourth sub-coupling structure 232, and the secondhousing 23 is able to be coupled to the receptacle body 20. In thisembodiment, the configurations of the second coupling structure and thesecond attaching structure are similar to those of the first couplingstructure and the first attaching structure, and unnecessary details arenot repeated herein. The way in which the second housing 23 is foldedand an edge of second housing 23 is joined in a similar manner to thefirst housing 21, for example, as shown in FIG. 2C, which shows that theedge of the second housing 23 is formed in such a manner that a thirdoverlapping portion 233 and a fourth overlapping portion 234 overlapeach other.

After the receptacle body 20 is assembled with the first housing 21, themetal plate 90 having a mounting hole 900 can be passed through bythose. In one embodiment, the mounting hole 900 is an opening that meetsa specific specification, such as the IEC specification, but it is notlimited thereto. After the first housing 21 passes through the mountinghole 900 of the metal plate 90, the metal plate 90 would be disposedbetween the elastic inclined plate 217 and the baffle 218. Since one endof the elastic inclined plate 217 on the first housing 21 extends fromthe corresponding side wall toward the outer side of the first housing21 and the direction of the metal plate 90, a first surface 901 of themetal plate 90 is blocked by the end portion of the elastic inclinedplate 217, and a second surface 902 of the metal plate 90 is blocked bythe baffle 218. The receptacle structure 2 of the optical connector canbe fixed on the metal plate 90 by the elastic inclined plate 217 and thebaffle 218. On the contrary, when the receptacle structure 2 is removedfrom the mounting hole 900, as long as the elastic inclined plate 217 ispressed inward, the entire receptacle structure 2 can be removed fromthe mounting hole 900. In addition, the thickness of the first housing21 is used to fill the gap between the mounting hole 900 and thereceptacle body 20, so that the receptacle structure 2 can be morefirmly installed on the metal plate 90.

Please refer to FIG. 5, FIG. 5 is a schematic diagram of an embodimentof an optical communication device in the present invention. The opticalcommunication device 9 includes an application device 91 having ahousing plate 92. The housing plate 92 has a plurality of mounting holes920 for mounting various connectors and power receptacles. Theapplication device 91 may be an optical fiber communication switch, butit is not limited thereto. In this embodiment, the optical communicationdevice 9 further includes a plurality of receptacle structures 2installed in the mounting holes 920 of the housing plate 92 so that atleast one optical connector 93 can be inserted into the receptaclestructure 2. In an embodiment, the optical connector 93 may be a miniduplex connector (MDC), but it is not limited thereto. The receptaclestructure 2 is as shown in the aforementioned receptacle structure ofthe optical connector, and unnecessary details are not repeated herein.The receptacle structure 2 is inserted from the outside of the housingplate 92 to the inside of the housing plate 92 through the first housing21, so that the receptacle structure 2 can be firmly fixed on thehousing plate 92. The fixing method is as described above, andunnecessary details are not repeated herein.

Next, the further effect of the receptacle structure 2 in the presentinvention is going to be described. Please refer to FIGS. 2A and 2B, thefirst flexible plate 200A, 200B and the second flexible plate 201A, 201Bof the present invention have elasticity. When the optical connector 93is inserted into the receptacle structure 2 from the first end 20A orthe second end 20B, a surface of the optical connector corresponding tothe first flexible board 200A, 201A or the second flexible board 200B,201B push against the protruding portions 208 a and 208 b on the firstflexible plate 200A, 200B and the second flexible plate 201A, 201B, sothat the first flexible plate 200A, 200B or the second flexible plate201A, 201B is pushed outwardly. As a result, a lateral plate of thefirst housing 21 or that of the second housing 23 respectively connectedto the first flexible plate 200A, 200B or the second flexible plate201A, 201B is further pushed outwardly, so that the first housing 21 orthe second housing 23 is firmly assembled with the receptacle body 20.Due to the outward expansion of the first housing 21 and the secondhousing 23, the first housing 21 and the second housing 23 cannot befallen out from the receptacle body 20 and the receptacle structure 2has a better coupling effect. Please refer to FIG. 6, which illustratesthe first flexible plate 201A contacting with the optical connector 93.When the optical connector 93 is inserted into the receptacle body andcoupled to the first connecting column 204 c, the left side of theconnector 93 pushes against the protruding portions 208 a on the innersurface of the flexible plate 201A. As a result, the first flexibleplate 201A is pushed outwardly, thereby expanding the first housing 21outwardly by an angle θ.

In summary, the receptacle structure of the present invention has thefollowing features: (1) the first housing and the second housing have aclosed structure, which is bent into an overall outline by using asingle piece of sheet metal, rather than using two pieces of sheetmetal. The joint can be overlapped, spliced or docked; (2) the firsthousing and the second housing are coupled to the receptacle body in asnap-fit manner, respectively. During assembly, the optical connector isinserted in the direction of insertion, but it does not fall out inreverse direction; (3) the plates on two sides of the receptacle bodyare flexible, when the optical connector is inserted into the receptaclestructure, the side plates can be pushed outwardly, thereby allowing thefirst housing and the second housing to expand outwardly. As a result,the first housing and the second housing are not easily fallen out fromthe insertion direction, thereby making the receptacle structure morefirmly fixed.

It will be understood that the above description of embodiments is givenby way of example only and that various modifications may be made bythose with ordinary skill in the art. The above specification, examples,and data provide a complete description of the present invention and useof exemplary embodiments of the invention. Although various embodimentsof the invention have been described above with a certain degree ofparticularity, or with reference to one or more individual embodiments,those with ordinary skill in the art could make numerous alterations ormodifications to the disclosed embodiments without departing from thespirit or scope of this invention.

What is claimed is:
 1. A receptacle structure for an optical connector,comprising: a receptacle body, having at least one connecting structure,the receptacle body having a first end and a second end, the opticalconnector coupled to the connecting structure through the first end andthe second end, a first flexible plate being flexible and extended fromtwo sides of the first end respectively, the first flexible plate havingat least one first attaching structure; and a first housing, being aclosed structure, and having a first through hole and a single foldedmaterial, two side walls of the first housing respectively having atleast one first coupling structure, wherein the first end of thereceptacle body is inserted into the first through hole and the two sidewalls of the first housing respectively correspond to the first flexibleplate of the receptacle body, the at least one first attaching structureis assembled with the at least one first coupling structure, and thefirst housing is coupled to the receptacle body, wherein the firstflexible plate has a protruding portion, when the receptacle structureis inserted by the optical connector, the protruding portion is pushedagainst by the optical connector, so that the first flexible plate ispushed outwardly.
 2. The receptacle structure of claim 1, wherein the atleast one first attaching structure comprises a first sub-attachingstructure and a plurality of second sub-attaching structure, the firstsub-attaching structure protrudes outwardly from a surface of the firstflexible plate, the plurality of second sub-attaching structure aredisposed on an edge of the first flexible plate, and protrudes outwardlyfrom the surface of the first flexible plate.
 3. The receptaclestructure of claim 2, wherein the at least one first coupling structurecomprises a first sub-coupling structure and a plurality of secondsub-coupling structure, the first sub-coupling structure and theplurality of second sub-coupling structure are openings whichrespectively correspond to the first sub-attaching structure and theplurality of second sub-attaching structure for protruding outwardlyfrom the openings.
 4. The receptacle structure of claim 1, wherein thefirst housing comprises a first overlapping portion and a secondoverlapping portion, which are disposed at two ends of the firsthousing, and the first overlapping portion and the second overlappingportion are partially overlapped by folding the first overlappingportion and the second overlapping portion.
 5. The receptacle structureof claim 1, wherein the first housing comprises a first splicing portionand a second splicing portion, which are disposed at two ends of thefirst housing, and the first splicing portion and the second splicingportion are spliced by folding the first splicing portion and the secondsplicing portion.
 6. The receptacle structure of claim 1, wherein twosides of the second end respectively comprises a second flexible plate,the each second flexible plate has at least one second attachingstructure.
 7. The receptacle structure of claim 6, comprising: a housingplate, having a mounting hole which allows the receptacle body to passthrough, the first end of the receptacle body disposed at a first sideof the housing plate and the second end of the receptacle body disposedat a second side of the housing plate; and a second housing, being theclosed structure having a second through hole and folded by the singlematerial, two side walls of the second housing respectively having atleast one second coupling structure, wherein the second end of thereceptacle body is inserted into the second through hole and the twoside walls of the second housing respectively correspond to the secondflexible plate, the at least one second attaching structure is assembledwith the at least one second coupling structure, and the second housingis coupled to the receptacle body.
 8. The receptacle structure of claim1, wherein an elastic inclined plate is extended from the two side wallsof the first housing, and an end of the each elastic inclined plate isextended from the corresponding side wall of the first housing towardsthe housing plate.
 9. The receptacle structure of claim 7, wherein thetwo side walls of the first housing respectively comprise bafflescorresponding to the first side of the housing plate.
 10. The receptaclestructure of claim 7, wherein a thickness of the first housing is usedto fill a gap between the mounting hole and the receptacle body.
 11. Anoptical communication device, comprising: an application device, havinga housing plate comprising a mounting hole; a receptacle structure, apart of the receptacle structure passing through the mounting hole, thereceptacle structure comprising: a receptacle body, having at least oneconnecting structure, the receptacle body having a first end and asecond end, a first flexible plate being flexible and extended from twosides of the first end respectively, the first flexible plate having atleast one first attaching structure, two sides of the second endrespectively having a second flexible plate, every the second flexibleplate having at least one second attaching structure; a first housing,being a closed structure, and having a first through hole and a singlefolded material, two side walls of the first housing respectively havingat least one first coupling structure, wherein the first end of thereceptacle body is inserted into the first through hole and the two sidewalls of the first housing respectively correspond to the first flexibleplate of the receptacle body, the at least one first attaching structureis assembled with the at least one first coupling structure, and thefirst housing is coupled to the receptacle body; and a second housing,being the closed structure, and having a second through hole and thesingle folded material, two side walls of the second housingrespectively having at least one second coupling structure, wherein thesecond end of the receptacle body is inserted into the second throughhole and the two side walls of the second housing respectivelycorrespond to the second flexible plate, the at least one secondattaching structure is assembled with the at least one second couplingstructure, and the second housing is coupled to the receptacle body,wherein a part which the first housing and the receptacle body areassembled passes through the mounting hole, the first end of thereceptacle body is disposed at a first side of the housing plate, andthe second end of the receptacle body is disposed at a second side ofthe housing plate, wherein the first flexible plate has a protrudingportion, when the receptacle structure is inserted by the opticalconnector, the protruding portion is pushed against by the opticalconnector, so that the first flexible plate is pushed outwardly.
 12. Theoptical communication device of claim 11, wherein an elastic inclinedplate is extended from the two side walls of the first housing, and anend of the each elastic inclined plate is extended from thecorresponding side wall of the first housing towards the housing plate.13. The optical communication device of claim 11, wherein the two sidewalls of the first housing respectively comprise baffles correspondingto the first side of the housing plate.
 14. The optical communicationdevice of claim 11, wherein a thickness of the first housing is used tofill a gap between the mounting hole and the receptacle body.
 15. Theoptical communication device of claim 11, wherein the at least one firstattaching structure comprises a first sub-attaching structure and aplurality of second sub-attaching structure, the first sub-attachingstructure protrudes outwardly from a surface of the first flexibleplate, the plurality of second sub-attaching structure are disposed onan edge of the first flexible plate, and protrudes outwardly from thesurface of the first flexible plate.
 16. The optical communicationdevice of claim 15, wherein the at least one first coupling structurecomprises a first sub-coupling structure and a plurality of secondsub-coupling structure, the first sub-coupling structure and theplurality of second sub-coupling structure are openings whichrespectively correspond to the first sub-attaching structure and theplurality of second sub-attaching structure for protruding outwardlyfrom the openings.
 17. The optical communication device of claim 11,wherein the first housing comprises a first overlapping portion and asecond overlapping portion, which are disposed at two ends of the firsthousing, and the first overlapping portion and the second overlappingportion are partially overlapped by folding the first overlappingportion and the second overlapping portion.
 18. The opticalcommunication device of claim 11, wherein the first housing comprises afirst splicing portion and a second splicing portion, which are disposedat two ends of the first housing, and the first splicing portion and thesecond splicing portion are spliced by folding the first splicingportion and the second splicing portion.
 19. The optical communicationdevice of claim 11, comprising an optical connector, which is insertedinto the first end or the second end and coupled to the connectingstructure, wherein when the optical connector is inserted into thereceptacle body through the first end or the second end, a side wall ofthe optical connector pushes the first flexible plate or the secondflexible plate outwardly and against the first housing or the secondhousing.